I'm sure others will chime in, but I would allow at least 2 days between changes. Especially if you are changing more than %30. I feel it allows the healthy bacteria to establish, and keeps your fetz...

Tonight I removed dead plant matter and cleaned the glass. I do a %50 water change every 3 days. I have been dosing 5g K2SO4, Aqua Vitro Envy 3ml, and just started my left over Flourish FE 1.75ml. I...